Question

for what value of k kx^2+8x+2=0 has real roots​

Answer 1

here is ur answer...

real roots means - D=0

so,

D=0

b²-4ac = 0

(8)² - 4×k×2 = 0

64 - 8k = 0

64 = 8k

64/8 = k

8 = k

hope it helps...